Anywhere here would be fine. https://www.ar-15.co/forums/85-AR-15-Specific-Forums

We appreciate your internet forum savvy as far as asking common questions that are searchable. My personal opinion is that we are small enough that we aren't overrun with those types of threads right now and you should feel comfortable asking whatever you'd like. It's the off-season for shooting, so there aren't a ton of gun threads and it'd be a nice change.